Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

Example Input: I am writing a report where I want to say something like: The number of structures in the PDB has been steadily increasing, with nearly 140 thousand structures currently available. However, this number feigns in comparison to the number of unique protein sequences that have been discovered, with over 210 million unique sequences present in the UniParc database. However, I am not sure about the 'this number feigns in comparison to' part. I have a feeling that I am using the wrong word here, but googling around didn't give me any leads.
Example Output: Pales in comparison, I suspect. To pale in comparison is to look weak, small, meagre, or inferior compared to something else. Pale here takes the little-used sense to become smaller. It's the same pale used in the common phrase (less common in the U.S.) pale into insignificance, whose meaning is obvious. (says Grammarist.com)

Example Input: Are Backronym and Acronym same? I don't understand the difference between these two terms.
Example Output: An acronym is a word formed by the initial letters of other words, such as Nato (North Atlantic Treaty Organisation). Note that this is different to an initialism where the initial letters are spelled out, as in BBC for example. A backronym is where the word comes first, and the initial letters are made to fit the word. An example is Alex the parrot (Wikipedia) who to date is the only non-human to spontaneously use language and throws doubt on the notion that a large brain is a prerequisite for language. The name Alex was subsequently said to be 'Avian Language Experiment', which then became 'Avian Learning Experiment. As this was decided (or at least stated) after naming the bird, it is a backronym. Another example would be the USA PATRIOT Act, where : The title of the act is a ten-letter backronym (USA PATRIOT) that stands for Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (Wikipedia)

Example Input: How do you know when to use singular or plural nouns if they're used as adjectives? i.e. 32-bit computer vs 32-bits computer? teacher union vs teachers union? wedding planner vs weddings planner? sport medicine vs sports medicine? student council vs students council? Which one is correct?.
Example Output:
You are thinking of noun adjuncts, or attributive nouns. Both Wikipedia and someone from Pearson Education state that traditionally, all attributive nouns are singular. However, the number of plural attributive nouns have increased over the years in a rather arbitrary manner. This means that there is no longer a set rule to determine whether the attributive is singular or plural. Despite this, there is a rough guide that you can use. The attributive noun tends to be plural in the following situations: 1: The singular form might lead to ambiguity an arts degree (a degree in the humanities) as opposed to an art degree (a degree in fine art) [I believe that this situation is what is referred to on wikipedia as 'lexical restrictions', providing the example of 'arm race' vs 'arms race'] 2. There is no singular form of a noun (in pluralia tantum) a customs officer 3. There is a need to denote variety a soft drinks manufacturer [but] a car manufacturer 4. A topical issue comes forth, often in newspaper stories... the tapes issue the tapes compromise the Watergate tapes affair the White House tapes mystery and other examples, including jobs cut. [I am not entirely sure what the point of this fourth category is] [Source: Pearson Education , directly quoted apart from what is enclosed inside square brackets] To this list I add my own: 5. [The attributive noun is plural if] it comes from the possessive form of the word teachers union ladies man However, this is more of an explanation rather than a rule you can use. There are too many exceptions, and you are unlikely to know the origins of the word. It doesn't make sense that it is teachers union but not students council. Note that we often 'choose by ear and it doesn't matter (employee lounge, employees lounge)' (Chicago Manual of Style). I would argue that it would be easier to just look it up every time and memorise words instead of trying to find a rule or categorise them. Even as a native speaker, I was not entirely sure whether it was 'sport medicine' or 'sports medicine' before looking it up. If you find yourself completely lost and without internet, go with the singular form because it is the traditional form and more common.

